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https://www.readbyqxmd.com/read/29334396/towards-the-continuous-production-of-pt-based-heterogeneous-catalysts-using-microfluidic-systems
#1
Uson Laura, Manuel Arruebo, Victor Sebastian
The continuous production of Pt-based heterogeneous catalysts based on ultra-small (<2 nm) noble metal nanoparticles deposited on mesoporous ordered silica and their catalytic activity in VOC abatement are here reported. Microfluidic reactors can be used not only to enable the fast and controlled production of ultra-small Pt nanoparticles (NPs), but also alloyed NPs including PtPd, PtRu and PtRh can be formed in short residence times (between 60 s and 5 min). A novel continuous and homogeneous loading of these catalytic NPs on SBA-15 used as a mesoporous support is also here reported...
January 15, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29334177/polypropylene-nonwoven-fabric-poly-ionic-liquid-s-for-switchable-oil-water-separation-dye-absorption-and-antibacterial-applications
#2
Yongyuan Ren, Jiangna Guo, Dan Xu, Jing Qin, Qian Lu, Feng Yan
Pollutants in wastewater include oils, dyes, and bacteria, making wastewater cleanup difficult. Here, we propose the preparation of multifunctional wastewater treatment media, poly(ionic liquid) grafted polypropylene (PP) nonwoven fabrics (PP@PIL), prepared via a simple and scalable surface grafting process. The fabricated PP@PIL fabrics exhibited superior switchable oil/water separation (η > 99%) and dye absorption performance (q = 410 mg/g), as well as high antibacterial properties. The oil/water separation could be easily switched via anion-exchanging of PIL segments...
January 15, 2018: ChemSusChem
https://www.readbyqxmd.com/read/29333852/synthesis-of-mip-nanoparticles-for-%C3%AE-casein-detection-using-spr-as-a-milk-allergen-sensor
#3
Jon Ashley, Yunus Shukor, Roberta D'Aurelio, Linda Trinh, Thomas Lawrence Rodgers, Jeff Temblay, Mike Pleasants, Ibtisam E Tothill
Food recalls due to undeclared allergens or contamination are costly to the food manufacturing industry worldwide. As the industry strives for better manufacturing efficiencies over a diverse range of food products, there is a need for the development of new analytical techniques to improve monitoring the presence of unintended food allergens during the food manufacturing process. In particular, the monitoring of wash samples from cleaning in place systems (CIP), used in the cleaning of food processing equipment, would allow for the effective removal of allergen containing ingredients in between food batches...
January 15, 2018: ACS Sensors
https://www.readbyqxmd.com/read/29333771/-effect-of-hydrofluoric-acid-concentration-on-the-surface-morphology-and-bonding-effectiveness-of-lithium-disilicate-glass-ceramics-to-resin-composites
#4
Qian Hailan, Ren Lingyan, Nie Rongrong, Meng Xiangfeng
OBJECTIVE: This study aimed at determining the influence of hydrofluoric acid (HF) in varied concentrations on the surface morphology of lithium disilicate glass ceramics and bond durability between resin composites and post-treated lithium disilicate glass ceramics. METHODS: After being sintered, ground, and washed, 72 as-prepared specimens of lithium disilicate glass ceramics with dimensions of 11 mm×13 mm×2 mm were randomly divided into three groups. Each group was treated with acid solution [32% phosphoric acid (PA) or 4% or 9...
December 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29332818/a-novel-dual-labeling-approach-enables-converting-fluorescence-labeling-reagents-into-fluorogenic-ones-via-introduction-of-purification-tags-application-to-determination-of-glyoxylic-acid-in-serum
#5
Mahmoud El-Maghrabey, Masaki Mine, Naoya Kishikawa, Kaname Ohyama, Naotaka Kuroda
Pre-column derivatization with fluorescence labeling reagents involves many problems including crowded chromatograms, possibility of the introduction of analytical errors, and poor selectivity. Herein we report a novel purification tag/fluorophore dual labeling approach based on a multi-component reaction to solve this major problem. Glyoxylic acid was recently identified as an early biomarker for diabetes, thus it was selected as a model analyte for our new dual labeling approach. Using the multi-component Petasis reaction, we could introduce a fluorophore (1-pyreneboronic acid, 1-PyBA) and a purification tag (taurine) to our target analyte (glyoxylic acid) in one step reaction...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29332161/the-computed-tomography-adrenal-wash-out-analysis-properly-classifies-cortisol-secreting-adrenocortical-adenomas
#6
Anne-Laure Humbert, Guillaume Lecoanet, Sophie Moog, Fehd Bouderraoui, Laurent Bresler, Jean-Michel Vignaud, Elodie Chevalier, Laurent Brunaud, Marc Klein, Thomas Cuny
PURPOSE: Adrenocortical lesions are characterized through imaging, hormonal and histopathological analysis. Our aim was to compare the radiological features of adrenocortical lesions with their cortisol-secreting status and histopathological Weiss score. METHODS: Seventy five patients operated between 2004 and 2016 in the University Hospital of Nancy for either adrenocortical carcinomas (ACC) or adrenocortical adenomas (ACA) were enrolled in this study. We collected cortisol parameters, Computed Tomography (CT) scans (unenhanced density, wash-out (WO) analysis) and 18F-Fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) datas...
January 13, 2018: Endocrine
https://www.readbyqxmd.com/read/29331283/the-influx-of-marine-debris-from-the-great-japan-tsunami-of-2011-to-north-american-shorelines
#7
Cathryn Clarke Murray, Nikolai Maximenko, Sherry Lippiatt
Marine debris is one of the leading threats to the ocean and the Great East Japan Earthquake and tsunami on March 11, 2011 washed away an estimated 5million tons of debris in a single, tragic event. Here we used shoreline surveys, disaster debris reports and ocean drift models to investigate the temporal and spatial trends in the arrival of tsunami marine debris. The increase in debris influx to surveyed North American and Hawaiian shorelines was substantial and significant, representing a 10 time increase over the baseline in northern Washington State where a long term dataset was available...
January 10, 2018: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/29330184/microbiomes-in-dishwashers-analysis-of-the-microbial-diversity-and-putative-opportunistic-pathogens-in-dishwasher-biofilm-communities
#8
Prem Krishnan Raghupathi, Jerneja Zupančič, Asker Daniel Brejnrod, Samuel Jacquiod, Kurt Houf, Mette Burmølle, Nina Gunde-Cimerman, Søren J Sørensen
Extreme habitats are not only limited to natural environments, but also apply to man-made systems, for instance household appliances such as dishwashers. Limiting factors, such as high temperatures, high and low pH, high NaCl concentrations, presence of detergents and shear force from water during washing cycles define the microbial survival in this extreme system. Fungal and bacterial diversity in biofilms isolated from rubber seals of 24 different household dishwashers were investigated using next generation sequencing...
January 12, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29329837/the-fate-and-enantioselective-behavior-of-zoxamide-during-wine-making-process
#9
Xinglu Pan, Fengshou Dong, Na Liu, Youpu Cheng, Jun Xu, Xingang Liu, Xiaohu Wu, Zenglong Chen, Yongquan Zheng
The fate of zoxamide and its enantiomers were evaluated in detail during wine-making process. The enantiomers of zoxamide were separated and determined by ultra-high-performance liquid chromatography coupled with tandem mass spectrometry (UHPLC-MS/MS) after each processing procedure including washing, peeling, fermentation and clarification. Significant enantioselectivity was observed in all three treatments with the half-lives of R-zoxamide and S-zoxamide estimated to be 45.6 and 52.9 h in Group A, 45.0 and 52...
May 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29329807/nasal-adhesive-patches-approach-for-topical-application-for-dry-nasal-syndrome
#10
Flavia Laffleur
This present study intended to provide nasal adhesive formulations for the topical treatment of dry nasal syndrome. Mucoadhesive films were prepared according to solvent evaporation method consisting of well-known polymers such as gellan and carboxymethyl cellulose. Mucoadhesive films (A-E) were evaluated in respect to their physicochemical properties, stability, disintegration behavior and tensile strength. Moreover, uptake capacity of adhesive films was investigated according to three assays vapor uptake/ permeability and water uptake...
January 9, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29328343/in-situ-fluorescence-activation-of-dna-silver-nanoclusters-as-a-label-free-and-general-strategy-for-cell-nucleus-imaging
#11
Duo Li, Zhenzhen Qiao, Yanru Yu, Jinlu Tang, Xiaoxiao He, Hui Shi, Xiaosheng Ye, Yanli Lei, Kemin Wang
A facile, general and turn-on nucleus imaging strategy was first developed based on in situ fluorescence activation of C-rich dark silver nanoclusters by G-rich telomeres. After a simple incubation without washing, nanoclusters could selectively stain the nucleus with intense red luminescence, which was confirmed using fixed/living cells and several cell lines.
January 12, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29327548/-research-of-tcm-synthetic-rehabilitation-on-the-recovery-of-wrist-joint-after-distal-radius-fractures
#12
Yong Zhao, Qing-Qing Dong, Wei-Kai Qin, An Yan, Kuan Zhang, Guo-Dong Zhao, Gang Wang, Jin-Chao Geng, Zhan-Feng Wang, Ze-Ming Lu
OBJECTIVE: To evaluate efficacy and advantages of the Traditional Chinese Medicine (TCM) synthetic rehabilitation therapy in the treatment of wrist dysfunction after distal radius fractures. METHODS: From May 2014 to October 2015, 72 patients with distal radius fracture meeting standards were treated using central randomization system for clinical research. All the patients were divided into two groups: 36 patients in test group and 36 in control group. Sixty-nine cases were finished treatment and followed up in the end...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29325972/antioxidant-activity-of-cape-caffeic-acid-phenethyl-ester-in-vitro-can-protect-human-sperm-deoxyribonucleic-acid-from-oxidative-damage
#13
Şule Ayla, Gülden Tunalı, Bülent E Bilgiç, Kenan Sofuoğlu, A Arman Özdemir, Gamze Tanrıverdi, Semra Özdemir, B Cem Soner, Bahar Öztürk, Serçin Karahüseyinoğlu, Esra Güler Aslan, Ismail Seçkin
PURPOSE: Sperm processing (e.g., centrifugation) used in preparation for assisted reproduction can result in excessive generation of reactive oxygen species (ROS) and potential sperm damage. The use of antioxidants during sperm processing has been shown to prevent iatrogenic sperm damage, including DNA damage. In this study, we evaluated the effect of caffeic acid phenethyl ester (CAPE) on oxidative stress mediated sperm dysfunction and DNA damage. METHODS: Semen samples were obtained to liquefy at room temperature...
January 8, 2018: Acta Histochemica
https://www.readbyqxmd.com/read/29324546/applying-precision-medicine-to-ovarian-cancer-proof-of-principle-for-a-molecular-second-look
#14
Melissa Schwartz, Olga Camacho-Vanegas, Ashley M Wood, Matthew Dashkoff, Courtney Whitelock, Timothy T Harkins, Carmel J Cohen, Ann Marie Beddoe, Peter Dottino, John A Martignetti
OBJECTIVES: The objectives of this study were to assess if targeted investigation for tumor-specific mutations by ultradeep DNA sequencing of peritoneal washes of ovarian cancer patients after primary surgical debulking and chemotherapy, and clinically diagnosed as disease free, provides a more sensitive and specific method to assess actual treatment response and tailor future therapy and to compare this "molecular second look" with conventional cytology and histopathology-based findings...
January 10, 2018: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29323478/simultaneous-detection-of-antibiotic-resistance-genes-on-paper-based-chip-using-ru-phen-2dppz-2-turn-on-fluorescence-probe
#15
Bofan Li, Xiaoming Zhou, Hongxing Liu, Huaping Deng, Ru Huang, Da Xing
Antibiotic resistance, the ability of some bacteria to resist antibiotic drug, has been a major global health burden due to the extensive use of antibiotic agents. Antibiotic resistance is encoded via respective genes, hence the specific detection of these genes is necessary for diagnostic and treat of antibiotic resistance cases. Conventional methods for monitoring antibiotic resistance genes require sample to be transported to a central laboratory for tedious and sophisticated tests, which is grueling and time-consuming...
January 11, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29322644/rosemary-castor-oils-and-propolis-extract-activity-against-candida-albicans-and-alterations-on-properties-of-dental-acrylic-resins
#16
Daiane Heidrich, Carmen Beatriz Borges Fortes, Aline Taís Mallmann, Clarissa Machado Vargas, Paula Borges Arndt, Maria Lúcia Scroferneker
PURPOSE: To evaluate the in vitro activity of 8% rosemary, 2% castor oils, and 12% propolis glycolic extract against Candida albicans, as well as the physical changes of properties in colorless and pink acrylic resins after immersion in these liquids. MATERIALS AND METHODS: Colorimetric, roughness, and Knoop microhardness assays were evaluated in 25 specimens distributed into five groups (3 test groups and 2 control groups - distilled water and hypochlorite 1%), totaling five specimens per group for each acrylic resin (colorless and pink)...
January 11, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29322389/performance-of-ceramic-ultrafiltration-and-reverse-osmosis-membranes-in-treating-car-wash-wastewater-for-reuse
#17
Shamima Moazzem, Jamie Wills, Linhua Fan, Felicity Roddick, Veeriah Jegatheesan
Reusing treated effluents in industries is a great option to conserve freshwater resources. For example, car wash centres all over Australia are estimated to use 17.5 billion litres of water and discharge it as wastewater and spend $75 million a year for both purchasing fresh water and for treating and/or discharging the wastewater. Therefore, it is important to develop simple but reliable systems that can help to treat and reuse car wash wastewater. Significant savings could also be associated with the implementation of such systems...
January 10, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29321941/hygienic-measures-during-animal-transport-to-abattoirs-a-status-quo-analysis-of-the-current-cleaning-and-disinfection-of-animal-transporters-in-germany
#18
Luisa Weber, Diana Meemken
Background: The process of cleaning and disinfection of animal transport vehicles after unloading animals at the abattoir is a critical control point regarding proper hygiene. It is an important step regarding the biosecurity. In the present study, a status quo analysis of the currently performed cleaning and disinfection measures of animal transport vehicles was carried out at the vehicle washing facilities of five different industrial abattoirs in Germany. For this purpose, a checklist was developed and validated to assess the washing procedure of transport vehicles in a standardised way...
2018: Porcine Health Management
https://www.readbyqxmd.com/read/29321609/complex-formation-via-hydrogen-bonding-between-rhodamine-b-and-montmorillonite-in-aqueous-solution
#19
Yanfen Fang, Ao Zhou, Wei Yang, Tirusew Araya, Yingping Huang, Ping Zhao, David Johnson, Jianzhu Wang, Zhiyong Jason Ren
This study investigates the adsorption mechanism differences among four nitrogenous dyes, sulforhodamine G (SRG), uncharged/deprotonated rhodamine B (RhB), orange II (Or II) and methyl blue (MB) by montmorillonite (MMT). MMT adsorption capacity for cationic MB was three times that of uncharged RhB and anionic SRG, while anionic Or II was not absorbed. Colloidal MMT particles have two types of surfaces, basal and edge, that interact with nitrogenous dyes very differently. The surface acidity of MMT was characterized with the pyridine adsorption method using in-situ diffuse reflectance infrared Fourier transform spectroscopy (in-situ DRIFTS)...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29320591/the-use-of-an-over-the-counter-hand-cream-with-sweet-almond-oil-for-the-treatment-of-hand-dermatitis
#20
Joshua A Zeichner, Diane Berson, Angela Donald
Hand dermatitis is estimated to affect greater than 15% of the general population. Childhood eczema, frequent hand washing, and occupational exposure to chemicals are predisposing factors. Hand dermatitis treatment involves both prevention of outbreaks and treatment of active disease. Moisturizers are essential to protect the skin from the environment, enhance hydration, and repair the skin barrier. They have been shown in large studies to prevent occupational related breakouts. Natural oils are commonly used in moisturizers for their moisturizing and emollient properties...
January 1, 2018: Journal of Drugs in Dermatology: JDD
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